Improvement in harvesters



UNITED STATES PATENT OFFICE.

THOMAS wELoH, OE cHUEOHvILLE, NEWQYORH y IMPROVEMENT iN HARVESTERS.

Specification forming part of Letters Patent No. 49.183, dated Au'gust 1, 1865.

` Boxes of Reapers and Mowers; and I do hereby declare that the following is a full, clear, and

exact description thereof, reference being had tothe accompanying drawings, making part of this specification, in whichl Figure 1 is alongitudinal seetionthrough the box and crank-pin. Fig. 2 is a front elevation of the parts, with the upper serrated` joint, J, of the pitman B, shown inA section. Fig. 3 is a detached face view of the inside of the two serrated-faced joint-plates of either end of the colinectingrod.

Similar letters of reference indicate corresponding parts in the several figures. One of the greatest obstacles met with in running reapers and mowers is in being unable to prevent the crank-pin and boxfrom heating and cutting out, and the great cause of that is inefficiency ot' the means heretofore known or used to lubricate that part of the machine, while it is necessarily run at a high speed, and is constantly exposed to grit and dust, which settles in thejoints.

The object of my invention is, mainly, to meet these objections by providing a constant fountain of oil to the pin, by so inclosing itin the box as to prevent leakage, and also to en tircly prevent any dust or dirt from working into the box.

To enable others to make and use my inven` tion, I will describe it in detail.

A in the drawings represents a sectionot' the ordinary crank-shaft of reapers and mowers; B, the balaneewheel; C, the crank-pin; D, the box; E, the connecting-rod; F, a por' tion of the knife-bar; G, the hanging oil cup or fountain; and H the tightcap over the end of the crank-pin.

I out a small channel, z', in the pin, near its junction with the wheel, and a corresponding channel, e, in the box. These channels prevent the oil from gushing out at that end of the box. l attach a reservoir, G, for oil to the under side of the box, so as to communicateV directly with the pin C, and I out channels in the box D under thepin, descending each wayin to the oilcup G, as seen at t and-b in Fig. 1. The tight cap H being screwed to the end of the box effectually prevents the oil from escaping at that end, and also keeps out all grit and dirt; and

the longitudinal channels aand b in the under side of the box return the collections from each way into the reservoir G. The projecting rim d of the wheel is provided, in part, as an ad- 1 l ditional preventive of the escape of oil, but

more especially to prevent grit, dto., from work`` ing into the joint.

The pivoted joints I and J (shown in Figs.

2 and 3) are designed to permit any` changes in the relative position of the cutter-bar with the crank-shaft orthe balance-wheel, which changes are sometimes unavoidable, and in some cases even desirable.

Theplatesfand g, which constitute thejoint,` are made male and fema1e,-as shown in the drawings, one being cast with a stud, s,.which constitutes the axis forthe other to turn upon, i

and the washer under the nut of the clampingbolt is forced down against tlie end of this y i, stud, if it is toV be used asa looscjont; but 1f i it is to be set to be used in any particular direction, the stud s should be shortened, so that the clampin g-bolt shall bind the parts together. The wear in this joint is distributed on all sides ofthe axis by the annular serrations.`

By-arranging the axis ot' thejoint ot' one end of the rod E at right angles to that of the other end the parts are forced to retain their relative position vertically, however much they .f

may be changed horizontally. l

The box D is secured to the pin G by the` pin o and washer o, after which `the cap H is screwed on.

It will be seen thattheoil will be dashed against the crank-pin at every revolution.

What I claim as my invention, and desire to secure by Letters Patent,is y

1. The combination and arrangementof the box D, constructed as `shown and described, with the crank-pin G, socket d, wheel B, or its equivalent, and driving shaft` A of `reapers and mowers, forfithe purposes specified.

2. The joints I and J, constructed and ar-` ranged as shown and described,`in combina* tion with the crank-box D and cutter-bar F,

for the purpose set forth. l l.;

THOMAS wELoH.

Witnesses:

WM. S. LOUGHBOROUGH, ASA H. BILLINGs. 

